Atomizing apparatus



. Nov. 14, 1944.

L. J. CLARK ETAL 2,362,835

ATOMIZING APPARATUS 'Filed Sept. 14, 1942 3 Sheets-Sheet 1 NOV. 14, .1944. J CLARK E 2,362,885 ATOMIZING APPARATUS 4 Filed Sept. 14, 1942 3 Sheets-Sheet 3 atomiaing apparatus especial-1' boilers are enlosed'but burner is directdc=for'rapid heatifig water and: generatiorfi of steam.

Patented- Nov. 14, 1944 Ammonia APPARK'rUs 5 Llewellyrm "Ja- Giark and William-Fq 7 Grand kapids Mieh assignor's tofllie Tangle-, foot Company GrandKa'pidS, Michl, aeorpe'-" I ration of Michigan Application September 14, 1942;:Se1iak N6. 45si22o 9* Claims. folia est) invention relates-to awmizm separates, and in e" particularly to improved 'stearrrsprall "semi tire-dirfusionand"spraying"ofinseeticides, disinfectants.

- .1 'oreeetobj'ecsormeinventio s to arm. duce apparatus estrus yp in m steam is genera burner; such as a gasoiineosurnen-rfrom hIcI i tHeflafiie is-TGrcied through" the boireri ror quiel-r and efficient steam generation.

.A further: importantobiect is' topro'vide pact arrangement in which 4, i

quate supply' of air to" forrpreventlrfg disturb'a f the humeroperation byxair smrtszortheiweamer. j I

" Anotheminiportant objeetis t6 provides boiler elefnent im'the ifoim of' 'a 'srien tnrougn which extends a flue: through which name from the or the-wild A further object is' to movies-a comps-erstwsizing: apparatus or outfit on which standard" commercial insecticide" containirlg cans may I be mountedv andreadilyconnected by Tan. atomiziri'g nozzle structure-with the boiler for flow of tli'e steamtodraw the' liquidfrom: zthel can -ior 'di'ffusionand-spraying thereofl' A further object of theirrve'ntion isto provide 7 a blow tore-h whose:burning'eapacityis sulfioient to create a suiificient amount of- -'st'eam 'for'atomizing a given quantity-of insecticide, say the'coh- I tents of one or more insecticide containers; and still have ample supply of Water in the boilerto I prevent dry overheatingtheopera-tor then: know.-

vin'g;after atomization ota certain amo'untol'? 'i'nsecticide, that the wboiler must be'arepl'eni'shed with water and the humor with; fuel; 2

Still another important object is to provide an enclosing 1 housing for 1 the 'boiler "and: burner 0f comparatively light sheet metal parts,- held 1 t0- The above enumerated and other features. of

our: inventlon -are' embodied in'the structure 2 shown-on? the drawingsrim winch drawings:

1 I. Figured is: a sideielevatidn of the apparatus; Figure '2 vis a verticalrlongitudinal section; Figure '3' is a section on: plane :III- -III- of Fig Figure =is aneridyieW to reducedscale.

The :apparatus ---compnses the-supporting ba'se mm the iorm '01" a sheet metal plate having the gether without the use: oi screws, :ibo'ltsponthe' like.

A further object is to provide -arr' enclosing housing for the boiler of-sheet metal lparts held securely together by clamping engagementtherewith ofahandle at the top thereofi by -whi'ch -hand1e the apparatus may be conveniently carried around and manipulated for direotioning of the spray. l

- Stillanother oloject is to providei-anassemhly in which all'ofthe various-parts particularly the iburner, are rigidly .held in operative position while the apparatus-is being used-invarious po si tions-fonsprayingl; w

, may; :be carried or manipulated for spraying operations; :By means of this handle, *the securing 50' downwardly-extending flanges! I along its longitiidi'naledge; the base beingprovided: with-suit- "able supporting "feet wl 2. v The sheet metal walls I 3 extend upwardly-from the *base- 'lfl' andare cut out/"at their upper ends :to provide semi-circular seats 14 for the: *eylindrical outer shell l 5 of theboileristructure B. These Walls 3 may be s'ecured' to':the baseby means of :endffianges: I 6

engagingibelow tongues-l1 deflected out-of the base 2 I01 7 A: flue l-8= extendathrough the boiler .shell and issiipporteid bythe lbciler" end walls or 5glrre'ads 1-9 and? 201 To -provide ,,-for -large heating.

7 shown oriFigure-3-.:-

area, "the flue: may ,b otoval gcross section, as

To surround and protect the-boiler 1 and to hold it i to i-t-s supporting wal-1sl3.- side 'wall sections: 2t, -22 of sheet I metal are provided which have :intumed fianges v23 at-theirdower ends for hoolring around and receiving thefiangesll I on the 'basei "NJ-, the walls attheir upper ends =-extending across the top of the boiler where they terminate inhook fianges' 24 A- tie-bar 25 of sheet; metal has hook flanges 26 along its-longitudinal edges'for receiving-the hook flanges '24, and when this tie-bar is slid longitudinally for reception of the hook-flanges in the tie bar flanges,

the w'alls 2l and 22- will be securely clamped in position lagainst the-boiler to hold it-to its supportsl A layer or wall of asbestos --21 is preferably provided between; the-top of the boiler and thewalls 2 l and 22 and: preferably extends down along thei'inside of these walls to the-base wall I (has shown 0n -Figure3.-- v v r A handle 28 maybe 'secured to the tie bar ZS, byameans of I which 'handle the-entire apparatus bar I 25' may ,bevreadily' applied to the side walls 2| and-22 to -clamp them in position.

'At the-left end of'the-bas'e Ill, aplatform-0r block: 2 9 is" provided for receiving the lower: end, usually recessed, of containers C 0f insecticides,

' the atomizrnozzle structure-A extending between the boiler and the top of the containers. The nozzle structure shown comprises the tubular part 30 extending from the body 3| having the plug flange 32 at its lower end for plugging into opening 33 in the top of the boiler. The head 34 at the outer end of the tubular part 30 has the jet bore 35 therethrough and the suction bore 33 alongside thereof, this suction bore communicating with the supply pipe 31 extending downwardly from the head into the container C, A cap 38 has threaded engagement with the outer end of the head 34, to provide a mixing chamber 39 at the ends of the bore 35 and 36, and having the spraying aperture 40. Steam blowing through the jet bore 35 and the spraying aperture 40 will create suction in the bore 36 for drawing insecticide from the container C into the mixing chamber 39 for mixture and difiusion with the steam and outflow therewith through the spray aperture 40.

As the nozzle element A has plug connection with the boiler, it can be readily detached from the boiler and from the container. The inlet end of the pipe 31 may be cutoff on the bias (Figure 2) to form a sharp edge Sothat, when a fresh container is to be applied, the top of the container may be readily pierced for insertion of the pipe 31, the container being then seated on the block 29 and the nozzle element A plugged into the boiler outlet. In the body 3| of the nozzle element A there is preferably inserted a check valve 4| for relief of the boiler pressure when the pressure reaches a predetermined maximum.

At the rear end of the base I is located the burner T, shown in the form of a gasoline blow torch well known in the art. The burner tube 42 of this torch directs the fl'ame into the flue I8 of the boiler, the forward end of the flue being covered by a baflle wall 43 which keeps the flame from contacting the container C and which directs the outflowing heat upwardly toward the atomizing nozzle element A for heating thereof.

The blow torch T is held in position on the base H! by suitable means such as a. clamping spring plying air to the burner. Further air supply for the burner is by way of the space 48 below the boiler and between the sidewalls 2| and 22. 'The boiler supporting walls |3 will function as bafiles in this space against airflow from the forward end thereof toward the burner space within the hood. The sidewalls 2| and 22 at their forward ends may be deflected inwardly to form additional baflle walls 49 (Figure air being required to flow first around the inner edges of the baffle walls and then around outer edges of the walls |3 so the air will enter the hood H in quiet condition for supplying the burner, When the burner is in operation, it will project the flame into the boiler flue l8, and air will be drawn through the space 48 and by its engagement with the boiler it will be preheated. The louvres 47 are located so the burner may be'supplied with air flow therethrough during all positions of the vaporizing device when in service.

The boiler is provided with a filling spout 50 closable by a plug 5|. This filler spout is so located, that when the device is set on its rear end for filling of the boiler, the amount of water the boiler will take before overflowing the inlet will determine the proper level of the water in the boiler for service operation. By using combustion fluid, such as gasoline, which is readily obtainable, our improved apparatus can be used where electrical current is not available, since the only requirements are easily transported supplies of gasoline, water and insecticide liquids. Thus the possible range of usefulness of the apparatus is widely extended.

By employing a burner, such as a blow torch, where the flame is projected, a horizontal type of boiler can be used, so that a lower and more compact structure assembly will result which can be readily carried and accurately manipulated for directioning of the spray, and as all the parts of the assembly are held in their operative position, they will .not become displaced during operation of the apparatus in various postions.

The fuel capacity of the burner being proportional to the volume of water in the boiler, the burner and boiler will cooperate for the vaporization of a predetermined volume of insecticide, and after atomizing such predetermined volume of insecticide, water will still be left in the boiler so as to prevent dry overheating of the boiler; Then when the burner and the boiler are replenished, the apparatus is ready for another atomization of a predetermined volume of insecticide or other fluids, to be sprayed. i

The various parts being enclosed and the boiler being surrounded by asbestos, loss of heat is minimized as well as the possibility of fire starting, and the useris protected against danger of injury from burns. The hot exhaust gases issuing from the boiler flue are baffled against striking insecticide container and are directed upwardly alongside of the container and toward the nozzle element for heating thereof to assist in vaporization and atomizing of the fluids.

We have shown a practical and efiicient embodiment of our invention, but we do not desire to be limited to the exact construction, arrangement and aperation shown and described as changes and modifications may be made without departing from the scope of the invention.

We claim as follows:

1. A unitary atomizing structure comprising a horizontal boiler having flue passageway therethrough, a blow torch located to direct flame under pressure through said flue passageway for the generation of steam in said boiler, a support for a container of liquid to be atomized, a nozzle element having connection with the boiler outlet and connection with the interior of the container, through which nozzle element the steam flows under pressure to draw fluid out of said container for atomizing and spraying thereof, and means for directing the heat outflow from said flue passageway against said nozzle element for direct heating thereof.

2. A unitary atomizing apparatus comprising a horizontally extending boiler having flue passageway therethrough, a gasoline blow torch at one end of the boiler having its burner tube located to direct flame under pressure into said flue passageway, a support for a container adjacent the other end of said boiler, an atomizing nozzle structure detachably connected with the boiler outlet and with the container and operated by the steam flow therethrough to draw fluid out of said container for atomizing and spraying thereof, and baffle means at the front end of said flue passageway for keeping the flame from impinging said container and for directing the heat from said flue upwardly along the container toward the nozzle element.

3. An atomizing apparatus comprising a supporting base, a horizontal boiler mounted on said base. and having flue passagewa longitudinally therethrough, a burner on saidbase at the rear end of said boiler effective to project flame under pressure into said flue passageway for generation of steam in said boiler, asupport at the front end of said base for a container of fluid to be atomized,

a nozzle element having a body at oneend adapted for detachable connection with the boiler outlet and having an atomizing head and a pipe extending therefrom into said container. whereby steamflow throughsaid nozzle element will draw fluid out of said container for atomizing thereof, and means for deflecting the outflow heat from said flue passageway away from said container and upwardly against said nozzle element for direct heating thereof. i i

4. An atomizing apparatus comprising a supporting base, a horizontal boiler mounted on said base and having flue passageway therethrough, a blow torch mounted on said bas at the rear of said boiler with its burner tube located to direct flame under pressure forwardly into and through said, flue passageway for generation of steam in the boiler, a protecting covering extending from said supporting base around said boiler, a hood on said base for said blow torch forming a con-, tinuation of said boiler cover and having louvres therein for air supply to said blow torch, passageway between said boiler and said base Within'said 5. An atomizing apparatus comprising a supporting base, a horizontal boiler mounted on said base, a burner on said base for heating said boiler for generation of steam therein, a support at the front end of said base for a container for fluid to be atomized, a nozzle structure connecting the outlet of said boiler with said containerand operable by the steam flow therethrough for drawing fluid out of the container for atomization thereof, a filler inlet for said boiler so located that, when the boiler is set on its rear end, filling thereof up to the flller opening will determine the proper volume of water in the boiler for sufllcient steam generation for complete emptying of the container... I I

6. A portable atomizer unit comprising a closed container fora fluid to beatomized,.a boiler, and a burner for heating said boiler, a base for supporting said container, boiler and burner in tandem relationship, means for removably holding said burner on said base, a nozzle member ree movably connected to said boiler and to said container, means extending transversely of said unit means about said boiler, said spacing means and said burner attached to opposed sides of said base and operative to hold said boiler, spacing means and base together and defining along said boiler, in conjunction with said spacing means, baffled air passages for admitting still air to said burner.

7. Atomizing apparatus comprising a supporting base, a horizontal boiler on said base havin a flue passageway therethrough, a container on said base for fluid to be atomized, a blow torch removably mounted on said base at the rear of said boiler with its burner tube located to direct flame under pressure forwardly into and through said fluepassageway for the generation of steam in the boiler, sidewalls extending upwardly from said supporting base around said boiler and terminating at the boiler top in hook flanges, a

flanged tie bar engaging said hook flanges to hold said plates clamped around the boiler to hold it on said supporting base and'to form a protectin cover therefor, a hood on said base for enclosing and blow fluid out of said container for atomizing thereof.

'8. An atomizingunit comprising a supporting base, a horizontal boiler on said base and having a flue passageway therethrough, a burner element removably mounted on the rear of said base operative to project flame under pressure into and through said flue passageway for generation of steam in the boiler, a protecting housing for said boiler comprising opposite side walls having eng'agement at their lower edges around the longitudinal edges of said base and extending upward-- 1y alongside of and over the top of the boiler and there terminating in hook flanges, a tie bar having hooked flanges slidable into engagement with the hook flanges on said side walls for holding these walls clamped around the boiler,v a support at the outer end of said base for a container of fluid to be atomized, a nozzle structure having detachable connection with one end of the boiler outlet and at the other end having a pipe extending therefrom for projecting into the container and operative by the steam flow therefor spacing said boiler from said base, and hood through'for drawing fluid out of the container for atomizing thereof, a removable hood about said burner, and a handle secured to said tie bar whereby said apparatus may be carried and manipulated during spraying service.

9. An atomizer unit comprising a container for fluid to be atomized, a horizontal boiler, a burner for heating said boiler, a base for supporting said boiler and the container and burner in tandem terminating in hook flanges at the boiler top, and a tie bar having hook flanges slidable into engagement with said side wall hook flanges for holding said plates clamped around ,said boiler whereby to hold said boiler and hood means to the base.

LLEWELLYNN J. CLARK, WILLIAM F. GOOSMANN. 

